9.3.4: Adding first refactoring attempt at the index view
9.3.4: A partial to render a single user
9.3.4: The fully refactored user index
9.4.1: Add tests for an admin attribute
9.4.1: Migration to add a boolean admin attribute to users
9.4.1: Migrating the development database
9.4.1: Sample data populator code with an admin user
9.4.2: Adding a factory for administrative users
9.4.2: Add tests for delete links
9.4.2: Add user delete links (viewable only by admins)
9.4.2: Adding a working destroy action
9.4.2: Add test for protecting the destroy action
9.4.2: A before filter restricting the destroy action to admins
9.5: Final Gemfile for the sample application